Question # 1

A ray of light is a line

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Parallel to wave front

Normal to wave front

Anti-parallel to wave

Any one of these

The distinguish between transverse and longitudinal wave_______ is used.

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Refraction

Interference

Diffraction

polarization

Sound waves can not be

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Reflected

Refracted

Polarized

Diffracted

Fringe spacing in Young's double slit experiment increases due to increase in.

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Slit separation

Wave length

Order of Fringe

Frequency of source

According to Huygen's principle the points on primary wave front can be considered as

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Secondary wavelets

Ray of light

Source of light

None of these

Soap film is sunlight appears coloured due to.

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Dispersion of light

Diffraction of light

Scattering of light

Interference fo light

Light entering rom air glass does not change in its.

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Frequency

Wavelength

Velocity

Direction

In case of point source the shape of wave front is.

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Plane

spherical

Circular

Eliptical

The fringe spacing in a double slit experiment can be increased by decreasing.

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Wavelength of light

Width of slits

Slit separation

Distance between the slits and the screen

The Bragg's equation is given by

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Young in 1801 performed experiment for the first time about

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Interference

Diffraction

Polarization

Particle nature of light

Bending of light around the edges of an obstacle is called.

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Refraction

Polarization

Interference

Diffraction

According to Hygen's principle, each point on a wave front acts as a source of.

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Secondary wavelet

New wave front

Sound

Primary wavelet

The distance between two consecutive wave front is equal to

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One wave length

Two wave length

Half wave length

Three wave length

Newton's rings are formed due to phenomenon of.

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Interference

Dispersion

Diffraction

Polarization

Bright fringes are also called as

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Minima

Maxima

Wave front

Ray of light

Hygen's principle is used for.

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Explain polarization

Locate the wave front

Find the speed of light

Find the index of refraction

The centre of Newton's rings will be

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Dark

Bright

Coloured

Not visible

Michelson's interferometer can be used ot find the

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Velocity of light

Wavelength of light

Velocity of sound

Wavelength of sound

In case of point source the shape of wave front is

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Circular

Spherical

Elliptical

Square

Which phenomenon of light proves that light waves are transverse in nature.

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Refraction

Reflection

Diffraction

Polarization

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Physics Fsc Part 1 Chapter 9 Online Test MCQs With Answers

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